Dimensions for DIN 7999 High strength hex. fit bolts with large width across flats for stuctural steel bolting - nuts and washers

d	k	ds	b	s
M12	8	13	23	22
M16	10	17	28	27
M20	13	21	33	32
M22	14	23	34	36
M24	15	25	39	41
M27	17	28	41	46
M30	19	31	44	50
M36	23	37	52	60